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Improving our health

A mature white oak

Here are some ways trees help our health:

Trees give us oxygen.

Through photosynthesis, they turn carbon dioxide into the oxygen we need to live.

Trees save lives.

By capturing fine particles of air pollution, urban trees and forests are saving an average of one life every year in each of 10 US cities, according to a recent study. In New York City, for example, trees save an average of eight lives every year. Trees catch tiny particles from the air on their leaves and branches.

Trees make us healthier.

Children who live in neighborhoods with more street trees are less likely to have asthma. People who live in areas with plenty of greenery are more likely to be physically active and less likely to be overweight or obese.